pair: UNIX; I/O control
This module performs file control and I/O control on file descriptors. It is an
-interface to the :c:func:`fcntl` and :c:func:`ioctl` Unix routines.
+interface to the :c:func:`fcntl` and :c:func:`ioctl` Unix routines. For a
+complete description of these calls, see :manpage:`fcntl(2)` and
+:manpage:`ioctl(2)` Unix manual pages.
All functions in this module take a file descriptor *fd* as their first
argument. This can be an integer file descriptor, such as returned by
pair: POSIX; I/O control
pair: tty; I/O control
-This module provides an interface to the POSIX calls for tty I/O control. For a
-complete description of these calls, see the POSIX or Unix manual pages. It is
-only available for those Unix versions that support POSIX *termios* style tty
-I/O control (and then only if configured at installation time).
+This module provides an interface to the POSIX calls for tty I/O control. For a
+complete description of these calls, see :manpage:`termios(2)` Unix manual
+page. It is only available for those Unix versions that support POSIX
+*termios* style tty I/O control configured during installation.
All functions in this module take a file descriptor *fd* as their first
argument. This can be an integer file descriptor, such as returned by